All-in-One Tools Collection
A broad collection of online tools for development, AI, design, and productivity tasks.
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NSFW Image Content Detector
AI-powered image content safety detector using NSFWJS to classify potentially inappropriate content with fallback analysis, supporting GIF/Animated WebP/APNG and JPEG/PNG/WEBP.
LibreOffice ODT to PDF
Batch convert ODT documents to PDF via LibreOffice while preserving original layout
HTML Mail to PDF
Render email HTML content to PDF with preserved basic formatting using Puppeteer
LibreOffice ODP to PDF
Batch convert ODP presentations to PDF via LibreOffice while preserving original layout
LibreOffice ODS to PDF
Batch convert ODS spreadsheets to PDF via LibreOffice while preserving original layout
LibreOffice DOCX to PDF
Batch convert .doc/.docx files to PDF via LibreOffice while keeping original layout
LibreOffice XLSX to PDF Report
Convert Excel workbooks to multi-page PDF reports via LibreOffice and merge batch outputs
LibreOffice PPT to PDF Handouts
Convert PPT/PPTX to PDF and optionally render handout layout with multiple slides per page
PDF Multipage Form Mock
Create printable multi-page form mocks with text fields, checkboxes, and signature areas
PDF Ebook Navigation
Ebook navigation demo with chapter/section jumps and return-to-top links
PDF Appendix Linker
Auto-insert internal jump links for mentions like see Appendix X / 见附录X
PDF Code Snippet Viewer
Render code snippets with mono font, background boxes, and clickable Git repository links